const positionerInstance = (
  <ButtonToolbar>
    <OverlayTrigger trigger="click" placement="left" overlay={<Popover title="Popover left"><strong>Holy guacamole!</strong> Check this info.</Popover>}>
      <Button bsStyle="default">Holy guacamole!</Button>
    </OverlayTrigger>
    <OverlayTrigger trigger="click" placement="top" overlay={<Popover title="Popover top"><strong>Holy guacamole!</strong> Check this info.</Popover>}>
      <Button bsStyle="default">Holy guacamole!</Button>
    </OverlayTrigger>
    <OverlayTrigger trigger="click" placement="bottom" overlay={<Popover title="Popover bottom"><strong>Holy guacamole!</strong> Check this info.</Popover>}>
      <Button bsStyle="default">Holy guacamole!</Button>
    </OverlayTrigger>
    <OverlayTrigger trigger="click" placement="right" overlay={<Popover title="Popover right"><strong>Holy guacamole!</strong> Check this info.</Popover>}>
      <Button bsStyle="default">Holy guacamole!</Button>
    </OverlayTrigger>
  </ButtonToolbar>
);

ReactDOM.render(positionerInstance, mountNode);
